Abstract：
The development of the environmental services trade is crucial to achieving climate goals and a green economic transition. Based on environmental services trade data from 2001 to 2019, this work uses the social network analysis (SNA) method to depict the structural features of global environmental services trade networks, empirically testing the influencing mechanism of network evolution based on the quadratic assignment procedure (QAP) model. The results indicate that the global environmental services trade is now in a rebound stable period. The market of the environmental services trade is becoming increasingly diversified, the accessibility and convenience of trade are constantly being enhanced, and there is an obvious core-edge structure in the network. Belgium, Italy, and the Netherlands are at the center of the global environmental services trade network; Greece, as the most prominent trade catch-up country, has gradually become an important \"bridge\" and \"hub.\" Climate change, geographical distance, and population size are the key factors affecting the global trade network of environmental services; environmental regulation, economic distance, and green technology distance have no significant impact on the development of the global environmental services trade, and language difference is no longer an obstacle to the growth of this trade. The results indicate that countries should develop in-depth transnational trade cooperation in the field of environmental services and do so with a more open attitude. The government should give sufficient policy support to the import and export of environmental services, guaranteeing the development of the environmental services trade.
摘要：
环境服务贸易的发展对于实现气候目标和绿色经济转型至关重要。基于2001-2019年的环境服务贸易数据,运用社会网络分析(SNA)方法刻画全球环境服务贸易网络的结构特征,基于二次分配过程(QAP)模型对网络演化的影响机制进行了实证检验。结果表明，全球环境服务贸易目前处于反弹稳定期。环境服务贸易的市场日趋多元化,贸易的可达性和便利性不断提高，网络中存在明显的核心边缘结构。比利时,意大利,荷兰是全球环境服务贸易网络的中心；希腊，作为最突出的贸易追赶国，已逐渐成为重要的“桥梁”和“枢纽”。“气候变化，地理距离,和人口规模是影响全球环境服务贸易网络的关键因素;环境规制,经济距离,和绿色技术距离对全球环境服务贸易的发展没有显著影响,语言差异不再是这种贸易增长的障碍。结果表明，各国应以更加开放的态度，在环境服务领域深入开展跨国贸易合作。政府要对环境服务进出口给予足够的政策支持,保障环境服务贸易的发展。
